The 22-year-old Grammy-winner might appear on Rihanna's upcoming eighth studio album, which is tentatively titled 'R8', reported Aceshowbiz.
"I'm personally really excited for Rihanna's album. I know some stuff about that record that no one knows," he said.
Fans then began speculating that Smith might be singing a duet with Rihanna, writing a song for her or doing some behind-the-scenes works for her album.
'R8' is expected to finally be released later this year.